package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import lombok.var;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.naming.Binding;
import java.util.HashMap;
import java.util.Map;

/*
* 集中处理所有异常
* */
@Slf4j /*lombok 日志处理异常*/
/*@ResponseBody
@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")*/
//@RestControllerAdvice 是@ResponseBody @ControllerAdvice的合体 可以点击去看
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{}，异常类型，{}",e.getMessage(),e.getClass());
        BindingResult bindingResult =e.getBindingResult();
        Map<String,String> map =new HashMap<>();
        bindingResult.getFieldErrors().forEach((item)->{
            String field = item.getField();
            String defaultMessage = item.getDefaultMessage();
            map.put(field,defaultMessage);
        });

        return R.error(BizCodeEnume.VAILD_EXCEPTION.getCode(),BizCodeEnume.VAILD_EXCEPTION.getMsg()).put("data",map);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleVaildException(Throwable e){
        log.error("数据校验出现问题{}，异常类型，{}",e.getMessage(),e.getClass());
        //Map<String,String> map =new HashMap<>();
        log.error("错误",e);
        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(), BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }
}
